Method of making radiators



Aug. 22, 1939. J. F. FAGAN METHOD OF MAKING RADIATQHS Filed' Feb. 19, 1958 Patented Aug. 22, 1939 UNITED STATES 2,170,774 METHOD OF MAKING RADIATORS Joseph F. Fagan, West Hartford, Conn., assignor to The Bush Manufacturing Company, Hartford, Conn., a corporation of Connecticut Application February 19, 1938, Serial No. 191,477

4 Claims.

My invention relates to that class or radiators which are employed for transference of. heat from or to fluid traversing tubes, commonly in the form of coils, and an object of the invention, among others, is the production of a. radiator of thi type. that shall be extremely simple in connections and particularlyeflicient in operation.

One form of a radiator embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawing, in which- V Figure l is a view in side elevation of my improved radiator With the center broken out and with one conducting plate arranged to show the method of assembling the parts.

Figure 2 is an end view.

Figure 3 is a view in cross section on a plane denoted by the dotted line 33 of Figure 1.

Figure 4 is a similar view on a plane denoted.

by the dotted line 44 of Figure 1.

Figure 5 is an isometric perspective view of a fragment of the radiator illustrating the manner of assembling the radiating plates or fins.

In the accompanying drawing the numeral 6 denotes a conductor for fluid from or to which heat is to be transferred, this conductor being shown in the form of a coil 1 supported in a frame comprising end plates 8, in a manner common to structures of this class and which will, therefore, be readily understood by those skilled in the art without further explanation. Said plates may have outturned feet 9 affording a means of support. The ends III of the coils are adapted for connection to any suitable means for supply and delivery of the fluid traversing the coils.

This invention resides mainly in the manner of constructing the radiating fins or plates and in assembling them upon the tubes. These radiating plates II have holes l2 to receive the branches of the coils, these holes being created with small flanges I 3, and cuts M are made in the plates extending from one edge thereof into said holes. Bend locating cuts l5 are extended from diametrically opposite sides of the holes l2 through and to a, short distance beyond the flanges l3, as shown in Figures 3 and 4 of the drawing. The end plates 8 may be provided with supporting flanges l6 for the coils if desired.

In assembling the parts constituting the radiator the tubes being bent into the form of coils the latter are passed through openings II in the form of slots in the end plates 8, and said plates are secured in place as by means of soldering; or

otherwise.

The arrangement of the holes l2 and the cuts l4 create wings or flaps [8 on opposite sides of .the cuts, as shown in Figures 1 and- 3, and for 5 openings or gaps, thus created, as shown in Fig- 10 ures land 5 of the drawing, after which the wings or flaps are bent inwardly to their former position to. close the openings [9. In bending the parts outwardly as just described use is made of the slots 15 which act to establish bending 15 lines for the wings or flaps, the inner ends of the bending lines terminatinglat the ends of the slots or cuts l5 and, therefore; outside of the flanges l3 through which the slots cut. By this means of establishing the bending line distortion of the 20 wings or flaps is prevented and they may be bent back into the original positions and will assume their. former fiat shape, as shown in Figure 5. Without thus establishing the bending line, when the wings are bent. outwardly, it is found that 25 they buckle and become distorted, and when bent back into their original position will not assume their former flat position.

a In accordance with the provisions of the patent statutes I have described the principles of 30 operation of my invention, together with the device which I now consider to represent the best embodiment thereof; but'I desire to have it understood that the device shown is only illustrative and that th invention may be carried out by 36 other means and appliedfto' uses other than those above'set out. 1

I claim: a

1. The method of forming a radiator that consists in making a hole in a radiating fin, extending a cut into said hole from the edge of the fin, extending short cuts out of said hole laterally of the direction of the first cut, thereby creating wings on opposite sides of said out, bending the wings outwardly to create a gap from the edge of said fin into said hole, then inserting a. conducting tube from the outer edge of said fin and laterally thereof through said gap into said hole, said gap being of a width substantially equal to the diameter of said tube and then bending the wings back into their original positions.

2. The method of forming a radiator that consists in making a series of holes in a radiating fin, extending a cut into each of said holes from one edge of said fln, extending short cuts from opposite sides of each of said holes laterally of the direction of the first cut, thereby creating wings on the opposite sides-oi each of said first cuts, bending the wings outwardly to create gaps from the edge of said fin into said holes, then inserting the several branches oi! a coil simultaneously through saidgaps into said holes, and then bending the wings back to their original positions.

3. The method of forming a radiator that consists in making a hole in a radiating fin, forming a flange around said hole, extending a cut into said hole from the edge of the fin, extenda ing short bend locating cuts fromopposlte edges of said hole laterally of the direction of the first cut and through said flange, thereby creating wings on opposite sides of said first cut, bendingv the wings outwardly to create a gap from the edge of said fin into said hole, then inserting a conducting tube laterally through said gap into said hole, and then bending the wings back into their original positions.

4. The method of forming a radiator that consists in making a series of holes ina radiating fin, forming flanges around said holes, extending cuts into said holes from the edges of the fin, extending a short bend locating cut from opposite sides of each of said holes laterally to the direction of the first cut thereto and through said flange, thereby creating wings on opposite sides of said first cut, bending the wings on opposite sides of each of said first cuts outwardly to create a gap from the edge of said fin into one of said holes, then simultaneously inserting the several branches of a coil laterally through said gaps into said holes, and then bending the wings back into their original positions.

JOSEPH F. FAGAN. 

